<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
use yii\captcha\Captcha;
use yii\helpers\Url;
?>
<?php $form=ActiveForm::begin([
    'enableClientValidation'=>true,
    'id'=>'login-form',
    'method'=>'post',
    'options' => ['class' => 'login-form']
]);?>
    <input type="text" class="email" name="email" placeholder='请输入保密邮箱！' />
    <span class="help-block"><?= $info;?></span>
<?= Html::submitButton('通过邮箱找回密码',['class'=>'submit','name'=>'submit']) ?>
<?php ActiveForm::end(); ?>